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        <TypeOfAssistanceTxt>DIVERSITY GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>7390</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>DIVERSITY GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2915</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>DIVERSITY GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2175</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>NORTH AMERICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1200</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>SOUTH AMERICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1300</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2100</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2025</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</TypeOfAssistanceTxt>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>3300</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS ARE PROVIDED TO ATTEND USENIX CONFERENCES, AND ATTENDANCE IS VERIFIED PRIOR TO DISBURSEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PART III:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDED $10,150 OF FREE REGISTRATION AT FMV TO 55 CONFERENCE ATTENDEES FROM REGIONS AROUND THE WORLD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>DIVERSITY GRANTS FOR TRAVEL AND REGISTRATION FEES</GrantTypeTxt>
        <RecipientCnt>17</RecipientCnt>
        <CashGrantAmt>19940</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STUDENT GRANTS FOR TRAVEL AND REGISTRATION FEES</GrantTypeTxt>
        <RecipientCnt>51</RecipientCnt>
        <CashGrantAmt>35955</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>GRANTS ARE PROVIDED TO ATTEND USENIX CONFERENCES, AND ATTENDANCE IS VERIFIED PRIOR TO DISBURSEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE I, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION PROVIDED $21,805 OF FREE REGISTRATION AT FMV TO 161 CONFERENCE ATTENDEES FROM THE UNITED STATES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>HELEN CASEY HENDERSON</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>150013</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>6877</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11761</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>168651</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>ANTONIA VEGLIA RECEIVED A SEVERANCE PAYMENT OF $65,726.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>DUE TO THE COVID-19 PANDEMIC, USENIX HOSTED VIRTUAL EVENTS AFTER FEBRUARY 2020, RATHER THAN THE TRADITIONAL IN-PERSON EVENTS. PROGRAM CONTENT WAS LARGELY UNAFFECTED, AND THIS WAS PRIMARILY A FORMAT CHANGE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL MEMBERSHIP CLASSES ARE ACCORDED VOTING RIGHTS, INCLUDING STUDENTS, ADVOCATES, SUSTAINERS, CHAMPIONS, EDUCATIONAL, AND CORPORATE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF USENIX ELECT THE BOARD OF DIRECTORS AND OFFICERS IN AN ELECTION HELD EVERY TWO YEARS. A NOMINATING COMMITTEE SUBMITS CANDIDATES, WHO MUST BE MEMBERS OF THE ASSOCIATION, AND PUBLISHES THE SLATE IN THE ORGANIZATION'S NEWSLETTER. A MINIMUM OF 2% OF CURRENT ASSOCIATION MEMBERS WITH VOTING RIGHTS, ACTING TOGETHER, MAY ALSO SUBMIT A CANDIDATE. THE OFFICERS AND DIRECTORS GOVERN ACCORDING TO THE BYLAWS OF THE ORGANIZATION. THE BYLAWS ARE POSTED ON THE ASSOCIATION'S WEB SITE AT USENIX.ORG</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS MAY CHANGE OR AMEND THE BYLAWS BY AN AFFIRMATIVE VOTE OF 2/3 OF THE VOTES CAST BY MEMBERS ENTITLED TO VOTE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS EMAILED TO THE BOARD OF DIRECTORS FOR REVIEW AFTER IT IS PREPARED. ANY QUESTIONS ARE DIRECTED TO THE ACCOUNTANT PREPARING THE RETURN FOR INVESTIGATION, EXPLANATION, AND RESOLUTION. FILING OF THE FORM 990 MAY OCCUR PRIOR TO ALL DIRECTORS HAVING AN OPPORTUNITY TO REVIEW IT, BUT ALL QUESTIONS ARE ADDRESSED AND RESOLVED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AT THE FIRST BOARD OF DIRECTORS MEETING AFTER AN ELECTION, EACH OFFICER AND DIRECTOR IS REQUIRED TO SUBMIT A LIST OF POTENTIAL CONFLICTS OF INTEREST. IF A CONFLICT EXISTS, THAT PERSON ABSTAINS FROM PARTICIPATION IN DISCUSSIONS OF AND VOTES REGARDING THAT MATTER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS REVIEWS/SETS THE COMPENSATION FOR THE EXECUTIVE DIRECTOR ON AN ANNUAL BASIS. COMPARABILITY DATA IS GATHERED AND REVIEWED IN EXECUTIVE SESSION, WITHOUT THE EXECUTIVE DIRECTOR PRESENT. MINUTES OF THESE MEETINGS ARE RECORDED CONTEMPORANEOUSLY. STAFF SALARIES ARE PROPOSED BY THE EXECUTIVE DIRECTOR AND ARE APPROVED BY THE BOARD AS PART OF THE BUDGET APPROVAL PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ASSOCIATION BYLAWS AND POLICIES ARE POSTED ON THE ORGANIZATION'S WEB SITE AT USENIX.ORG. THE FINANCIAL STATEMENTS ARE ALSO POSTED ON THIS SITE AND IN ;LOGIN: MAGAZINE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
